Cambridge - Boston, July 8, 1904
  Clear & warm.
  Spent most of day in Museum writing authors etc.
  To Boston at 4.30 P.M. to see Dr. Blake
  He tells me that I must not work more
than three home for day for the present as there
has been a return of congestion in the ear &
other unfavorable symptoms.  I had aspired to attack
& finish the introduction to Cambridge Birds this
summer but I fear it will now be impossible